Q: how to repair the commutator of a worn DC motor?

Answer: that depends on the degree of wear and tear, if the light wear, you can take out the rotor car commutator, and then carved mica layer, the commutator surface grinding, rotor dynamic balance, down installation can be used. If the wear is too severe for repair, it is time to change the commutator.

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Q: what happened to the commutator ignition of the DC motor?

Answer: As long as the use of carbon brush motor in work, the commutator and carbon brush contacts will have spark, for example, you disconnect the switch with a load of work circuit will also produce sparks, also known as the arc. 1.poor contact between brush and commutator, uneven surface of commutator;

2. loose brush holder or incorrect installation position;

3. short brush wear, uneven pressure;

4. short circuit of commutator pole winding.

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Q: relationship between commutator angle and performance of DC motor?

Answer: commutator is one of the most critical parts of DC motor, which directly affects the life and performance of commutator In the past, the copper colddrawn ladder is mostly used to make the commutator, but because of the strength, heat resistance, wear resistance and poor recrystallization temperature of the commutator, the commutator is easy to wear, and can not meet the highspeed, large motor on the mechanical properties and process performance.

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Q: why does the collector ring need cleaning ?

Answer: Collector ring for the use of carbon brush, wear a large amount of carbon powder, so the need for regular cleaning and replacement of carbon brush.

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Q: What is the function of the collector ring of the generator?

Answer:Also known as conductive ring, slip ring, collector ring, bus ring, etc. It can be used in any electromechanical system that requires continuous rotation and requires the transmission of power and signals from a fixed position to a rotating position. The slip ring can improve the system performance, simplify the system structure, and avoid the wire sprain in the process of rotation.

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